| Steps of implementation | Type of data |
Collection and acquisition: (Raster images and vectors) | - Satellite image (High resolution); - Restitution plan (1/2000); - Development plan (1/2000); - Restructuring plan; - Topographic map. | Spatial |
- Climate and Rainfall; - Runoff coefficient; - Other statistics. | Alphanumeric | |
Digitization and calculations | - Slope (%); - Drainage width and length (km); - Watershed and sub-watershed area (m2) | Spatial and Alphanumeric
|
Production | Analysis and synthesis cards. | Spatial and Alphanumeric |